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This Day in History: March 29
Featured Event 1867 Dominion of Canada created On this day in 1867, with the British North America Act, the British colonies of Nova Scotia, New Brunswick, and Canada were united as the Dominion of Canada, and the province of Canada was separated into Quebec and Ontario. Featured Biography Pearl Bailey American entertainer Born March 29,
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This Day in History: March 28
Featured Event 1930   Constantinople renamed Istanbul Built as Byzantium about 657 bce, then renamed Constantinople in the 4th century ce after Constantine the Great made the city his capital, the Turkish city of Istanbul officially received its present name on this day in 1930. Virginia Woolf British writer Born January 25, 1882 London, England Died March 28,
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Harpoon (missile)
The Harpoon is an all-weather, over-the-horizon, anti-ship missile manufactured by McDonnell Douglas (now Boeing Defense, Space & Security). The AGM-84E Standoff Land Attack Missile (SLAM) and later AGM-84H/K SLAM-ER (Standoff Land Attack Missile – Expanded Response) are cruise missile variants. The regular Harpoon uses active radar homing and flies just above the water to evade defenses. The missile can be launched from: Fixed-wing aircraft (the AGM-84, without the solid-fuel
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AN/SLQ-25 Nixie Torpedo Countermeasures
The AN/SLQ-25 Nixie and its variants are towed torpedo decoys used on US and allied warships. It consists of a towed decoy device (TB-14A) and a shipboard signal generator. The decoy emits signals to draw a torpedo away from its intended target. The Nixie attempts to defeat a torpedo’s passive sonar by emitting simulated ship noise, such
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This Day in History: March 27
47 bce Cleopatra reinstated as queen of Egypt The legendary Cleopatra VII Thea Philopator, aided by her Roman lover Julius Caesar, was reinstated as coruler of Egypt (with her brother Ptolemy XIV) this day in 47 bce following a civil war with her brother Ptolemy XIII. Births 1970 Mariah Carey American singer 1965 José Carlos Palma Creator of
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Bangui magnetic anomaly
The Bangui magnetic anomaly is a local variation in the Earth’s magnetic field centered at Bangui, the capital of the Central African Republic. The magnetic anomaly is roughly elliptical, about 700 km × 1,000 km (430 mi × 620 mi), and covers most of the country, making it one of the “largest and most intense crustal magnetic anomalies on the African continent”.The anomaly was discovered
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Magnetic anomaly
In geophysics, a magnetic anomaly is a local variation in the Earth’s magnetic field resulting from variations in the chemistry or magnetism of the rocks. Mapping of variation over an area is valuable in detecting structures obscured by overlying material. The magnetic variation (geomagnetic reversals) in successive bands of ocean floor parallel with mid-ocean ridges was
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Jabuka (island)
Jabuka (pronounced [jâbuka], which means apple in Croatian) is an uninhabited volcanic island in the Adriatic Sea, west of the island of Vis. It is part of the Dalmatian archipelago. The closest land masses are the small islands of Svetac and Brusnik. Jabuka is the farthest from the nearest land mass out of all Croatian islands. Flora and fauna Its coast is steep and difficult to approach,
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South Atlantic Anomaly
The South Atlantic Anomaly (SAA) is an area where Earth’s inner Van Allen radiation belt comes closest to Earth’s surface, dipping down to an altitude of 200 kilometres (120 mi). This leads to an increased flux of energetic particles in this region and exposes orbiting satellites (including the ISS) to higher-than-usual levels of ionizing radiation. The effect is caused by the non-concentricity of Earth
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